To amp people up for the group's reunion tour, it appears that the Spice Girls may have enlisted the help of Bono. According to British paper The Mirror, Bono will be writing a song for the Spice Girls' forthcoming greatest hits album, which should coincide with the tour. You can't even make a joke about this, because who even knows what that collaboration could possibly sound like? Uno, dos, tres, catorce, zig-a-zig ah! 
There's been a bit of unease as to how the album will perform and if there's still a solid Spice Girls' fan base out there.
However Bono's involvement has lifted the whole camp and he's delighted to have been asked and add his experience.